CN215677918U - Electrode slice flexibility detection device - Google Patents
Electrode slice flexibility detection device Download PDFInfo
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- CN215677918U CN215677918U CN202122038144.4U CN202122038144U CN215677918U CN 215677918 U CN215677918 U CN 215677918U CN 202122038144 U CN202122038144 U CN 202122038144U CN 215677918 U CN215677918 U CN 215677918U
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Abstract
The utility model provides an electrode plate flexibility detection device which comprises a first clamping mechanism, a second clamping mechanism and a driving mechanism, wherein the first clamping mechanism is arranged on the first side of the electrode plate; the electrode slice to be detected is clamped by a first clamping mechanism and a second clamping mechanism after being folded in half; the first clamping mechanism fixes two folded ends of the electrode plate to be detected; the second clamping mechanism is close to the bending end of the electrode plate to be detected; the driving mechanism drives the second clamping mechanism to slide towards the bending end of the electrode plate to be detected. The first clamping mechanism, the second clamping mechanism and the driving mechanism are arranged in the electrode plate flexibility detection device, so that the device can detect the flexibility of the lithium ion battery electrode plate.
Description
Technical Field
The utility model relates to the technical field of lithium ion battery detection, in particular to an electrode plate flexibility detection device.
Background
With the adoption of a large number of lithium ion batteries as power supplies in the fields of mobile phones, digital products, notebook computers, unmanned planes, aeromodelling, electric tools, war industry, new energy vehicles, portable energy storage, medical equipment and the like, the domestic lithium ion battery industry has been rapidly developed. At present, most of lithium ion square battery cores in the market are prepared by rolling and splitting a positive plate, a negative plate and a diaphragm through winding by a winding needle; the flexibility of the positive and negative plates has a crucial influence on the rolling process, the slitting process and the winding process; when the electrode plate with poor flexibility is processed in the processes of rolling, slitting and winding, material falling, foil leakage and strip breakage of the electrode plate can occur, so that the production efficiency of the battery cell is reduced, the production cost of an enterprise is increased, and the risk is brought to the safety of the lithium ion battery; therefore, the detection of the flexibility of the electrode plate has great significance for the preparation and production of the lithium ion battery.
The publication number is CN106680109A, and discloses a device for detecting flexibility of an electrode plate coating of a lithium ion battery, which comprises a left baffle and a fixed seat which are respectively and vertically fixed at two ends of a base, wherein a guide rail is horizontally and fixedly arranged on the base between the left baffle and the fixed seat, and the guide rail is connected with a right baffle in a sliding way; a supporting film is erected between the left baffle and the right baffle, a screw rod is movably arranged on the fixed seat in a penetrating manner, the front end of the screw rod is connected with the right baffle, and the screw rod is rotated to drive the right baffle to move along the guide rail; however, the comparative document discloses that the extrusion deformation measurement is poor in flexibility, repeatability and consistency; in addition, when the pole piece is extruded, the stress is not uniform, the high power microscope needs to be adjusted for many times to find the deformation and fracture position of the pole piece, and the operation is complicated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a lithium ion battery pole piece flexibility detection device which is simple and easy to operate.
The utility model solves the technical problems through the following technical means:
the electrode plate flexibility detection device comprises a first clamping mechanism (2), a second clamping mechanism (3), a driving mechanism (4) and an electrode plate to be detected (5); the electrode slice (5) to be detected is folded in half and then clamped by the first clamping mechanism (2) and the second clamping mechanism (3); the first clamping mechanism (2) is used for fixing two folded ends of the electrode slice (5) to be detected; the second clamping mechanism (2) is close to the bending end of the electrode plate (5) to be detected; and the driving mechanism (4) drives the second clamping mechanism (3) to slide towards the bending end of the electrode plate (5) to be detected.
When the device works, the electrode plate to be detected, which is cut into a specific size, is folded and placed between a first clamping mechanism and a second clamping mechanism, two folded ends of the electrode plate to be detected are fixed between the first clamping mechanisms, and a bent end of the electrode plate to be detected is fixed between the second clamping mechanisms; then starting the driving mechanism to slowly drive the second clamping mechanism to slide towards the bending end of the electrode plate to be detected so as to continuously extrude the bending end of the electrode plate to be detected to continuously deform the electrode plate to be detected until the bending end of the electrode plate is cracked or broken, and thus the flexibility of the electrode plate to be detected can be obtained; the detection device is simple in structure principle, easy to operate and easy to produce in batches.
Further, the device also comprises a base (1), wherein baffle plates (11) are fixed on the front wall and the rear wall of the base (1); a first clamping mechanism (2) is fixed between the two baffle plates (11) on one side; and two baffles (11) on the other side are connected with a second clamping mechanism (3) in a sliding way.
Further, the first clamping mechanism (2) comprises a first connecting rod (21) and a second connecting rod (22); the front end of the first connecting rod (21) is fixed on the baffle (11), and the rear end of the first connecting rod (21) is fixed with a first fixing rod (211); the front end of the second connecting rod (22) is fixed with a second fixing rod (221), the rear end of the second connecting rod (22) is fixed with a clamping seat (2212), and the clamping seat (2212) is clamped on the baffle (11).
Has the advantages that: can dismantle the setting through carrying on the cassette, the electrode slice of waiting to examine of the not unidimensional size that makes all can block and carry out follow-up detection between head rod and second connecting rod.
Further, a first locking bolt (2111) is connected to the middle of the first fixing rod (211); the middle of the second fixing rod (221) is connected with a second locking bolt (2211).
Further, the second clamping mechanism (3) comprises a moving plate (31); and sliding seats (311) are fixed at the front end and the rear end of the moving plate (31), and the sliding seats (311) are clamped on the front baffle plate and the rear baffle plate (11) and slide in a matched manner with the baffle plates (11).
Further, the second clamping mechanism (3) further comprises a third connecting rod (32) and a fourth connecting rod (33); a third connecting rod (32) is fixed at one end, close to the first clamping mechanism (2), of the front sliding seat (311), and a fourth connecting rod (33) is fixed at one end, close to the first clamping mechanism (2), of the rear sliding seat (311); the base (1) is positioned between the moving plate (31) and the third connecting rod (32) and the fourth connecting rod (33); the rear end of the third connecting rod (32) is fixedly provided with a first pressure plate (321), and the front end of the fourth connecting rod (33) is fixedly provided with a second pressure plate (331).
Has the advantages that: through the mutual cooperation of base, movable plate, sliding seat for the movable plate can remove on the base, thereby drives third connecting rod and fourth connecting rod and removes.
Furthermore, a blocking piece (333) is connected to the front of the second pressing plate (331) through a fourth locking bolt (332).
Has the advantages that: through the setting of first locking bolt, second locking bolt, fourth locking bolt, can be according to waiting the difference of examining electrode slice thickness, fix it on the suitable position between head rod and second connecting rod, third connecting rod and fourth connecting rod.
Furthermore, the rear end of the top wall of the base (1) is provided with scales (12), and the front end of the top wall of the base (1) is provided with a grade mark (13); the third connecting rod (32) is arranged in parallel with the grade mark (13), and the fourth connecting rod (33) is arranged in parallel with the scale (12).
Has the advantages that: through with third connecting rod and grade sign parallel arrangement, fourth connecting rod and scale parallel arrangement, when waiting to examine electrode slice bending end and taking place crackle or fracture, according to the removal distance numerical value that the fourth connecting rod corresponds and the regional position of grade that the third connecting rod corresponds, can judge the pliability grade that should wait to examine the electrode slice, and then solved present electrode slice pliability and detected difficultly, can't accomplish the problem that quantitative standard detected.
Furthermore, the driving mechanism (4) comprises a fixed seat, a screw rod (42), a crank handle (43) and a fixed plate; the fixing base is fixed on the bottom wall of the base (1), the fixing plate is fixed on the bottom wall of the moving plate (31), threaded holes aligned in parallel are formed in the center positions of the fixing base and the fixing plate and are parallel to the moving plate (31), and spiral screw rods (42) are connected inside the threaded holes.
Furthermore, a crank handle (43) is fixed at one end of the screw rod (42) far away from the fixed seat.
Has the advantages that: the moving plate is pulled to move through the spiral lead screw, the electrode plate to be detected can be slowly and controllably deformed, the setting operation precision is high, and the flexibility grade data can be recorded in a controllable mode.
The utility model has the advantages that:
the electrode plate flexibility detection device is provided with a first clamping mechanism, a second clamping mechanism and a driving mechanism; when the device works, the electrode plate to be detected, which is cut into a specific size, is folded and placed between a first clamping mechanism and a second clamping mechanism, two folded ends of the electrode plate to be detected are fixed between the first clamping mechanisms, and a bent end of the electrode plate to be detected is fixed between the second clamping mechanisms; then starting the driving mechanism to slowly drive the second clamping mechanism to slide towards the bending end of the electrode plate to be detected so as to continuously extrude the bending end of the electrode plate to be detected to continuously deform the electrode plate to be detected until the bending end of the electrode plate is cracked or broken, and thus the flexibility of the electrode plate to be detected can be obtained; the detection device is simple in structure principle, easy to operate and easy to produce in batches.
According to the utility model, the clamping seat is detachably arranged, so that the electrode plates to be detected with different sizes can be clamped between the first connecting rod and the second connecting rod for subsequent detection.
According to the utility model, the base, the moving plate and the sliding seat are mutually matched, so that the moving plate can move on the base, and the third connecting rod and the fourth connecting rod are driven to move.
According to the utility model, through the arrangement of the first locking bolt, the second locking bolt and the fourth locking bolt, the electrode plate to be detected can be fixed at a proper position between the first connecting rod and the second connecting rod, and between the third connecting rod and the fourth connecting rod according to the different thicknesses of the electrode plate to be detected.
According to the utility model, the third connecting rod is arranged in parallel with the grade mark, the fourth connecting rod is arranged in parallel with the scale, when the bent end of the electrode plate to be detected cracks or breaks, the flexibility grade of the electrode plate to be detected can be judged according to the moving distance value corresponding to the fourth connecting rod and the grade region position corresponding to the third connecting rod, and the problems that the flexibility detection of the electrode plate is difficult and the quantitative standard detection cannot be realized at present are solved.
The utility model pulls the moving plate to move through the screw rod, can slowly and controllably deform the electrode plate to be detected, has high setting operation precision and controllable and recordable flexibility grade data.
Drawings
Fig. 1 is a schematic structural view of an electrode sheet flexibility detection device according to embodiment 1 of the present invention;
fig. 2 is a schematic operation diagram of an electrode sheet flexibility detection device according to embodiment 1 of the present invention;
fig. 3 is a partially enlarged view of the electrode sheet flexibility detection device in fig. 1 according to embodiment 1 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1 and fig. 2, the present embodiment provides an electrode sheet flexibility detection device, which includes a base 1, a first clamping mechanism 2, a second clamping mechanism 3, and a driving mechanism 4.
As shown in fig. 2, baffles 11 are fixed on the front wall and the rear wall of the base 1; a first clamping mechanism 2 is fixed between the left ends of the two baffle plates 11; the right sides of the two baffle plates 11 are connected with a second clamping mechanism 3 in a sliding manner; the electrode slice 5 to be detected after being folded is clamped between the first clamping mechanism 2 and the second clamping mechanism 3; the rear end of the top wall of the base 1 is provided with a scale 12 for measuring the moving distance of the second clamping mechanism 3; the front end of the top wall of the base 1 is provided with a grade mark 13, and the grade mark 13 and the scale 12 are corresponding to each other, so that the flexibility of the electrode slice 5 to be detected can be graded; the bottom wall of the base 1 is fixed with a driving mechanism 4.
As shown in fig. 1 and 2, the first clamping mechanism 2 includes a first connecting rod 21 and a second connecting rod 22; the front end of the first connecting rod 21 is fixed on the baffle 11, the rear end of the first connecting rod 21 is fixed with a first fixing rod 211, and the middle of the first fixing rod 211 is connected with a first locking bolt 2111; a second fixing rod 221 is fixed at the front end of the second connecting rod 22, and a second locking bolt 2211 is connected in the middle of the second fixing rod 221; as shown in fig. 3, the rear end of the second connecting rod 22 is fixed with the card holder 2212, the shape of the card holder 2212 is an inverted U-shape, the front wall of the card holder 2212 is fixed with the second connecting rod 22, the inside card of the card holder 2212 is on the baffle 11, the card holder 2212 and the baffle 11 are connected through the third locking bolt 2213, and by the arrangement, the electrode sheets 5 to be inspected with different sizes can be clamped between the first connecting rod 21 and the second connecting rod 22 for subsequent detection.
As shown in fig. 1 and 2, the second clamping mechanism 3 includes a moving plate 31, a third connecting rod 32, and a fourth connecting rod 33; sliding seats 311 are fixed at the front end and the rear end of the moving plate 31, sliding grooves (not shown) are formed in one sides, close to the baffle 11, of the sliding seats 311, and the sliding grooves are clamped on the front baffle 11 and the rear baffle 11 and slide in a matched mode with the baffle 11; the left end of the front sliding seat 311 is fixed with a third connecting rod 32, and the left end of the rear sliding seat 311 is fixed with a fourth connecting rod 33; the base 1 is connected among the third connecting rod 32, the fourth connecting rod 33 and the moving plate 31; a first pressing plate 321 is fixed at the rear end of the third connecting rod 32, a second pressing plate 331 is fixed at the front end of the fourth connecting rod 33, and a blocking piece 333 is connected in front of the second pressing plate 331 through a fourth locking bolt 332; preferably, the gap distance between the third connecting rod 32 and the fourth connecting rod 33 is less than or equal to 5 mm; the third connecting rod 32 is arranged in parallel with the grade mark 13, and the fourth connecting rod 33 is arranged in parallel with the scale 12; the driving mechanism 4 is fixed to the middle of the bottom wall of the moving plate 31.
As shown in fig. 1, the driving mechanism 4 includes a fixing base (not shown), a screw rod 42, a crank handle 43, and a fixing plate (not shown); the fixing base is fixed in the left side section position of 1 diapire of base, the fixed plate is fixed in the intermediate position of movable plate 31 diapire, fixing base and fixed plate parallel alignment setting, the fixing base, central point on the fixed plate puts all and sets up parallel alignment's screw hole (not shown) in parallel with movable plate 31, the inside of screw hole all is connected with screw rod 42, the one end of keeping away from the fixing base on the screw rod 42 is fixed with crank 43, above-mentioned setting can realize rotating screw rod 42 through crank 43 and drive movable plate 31 and remove about, thereby control third connecting rod 32 and fourth connecting rod 33 and remove, come the pulling movable plate 31 through screw rod 42 and remove, can make the electrode piece 5 that awaits measuring slowly and produce deformation in the controlled way, this sets up the operation precision height, flexibility grade data is controllable can take notes.
As shown in fig. 2, the electrode sheet 5 to be detected is folded in half and then clamped by the first clamping mechanism 2 and the second clamping mechanism 3; first fixture 2 is fixed and is waited the both ends of waiting to examine the fifty percent discount of electrode slice 5, and second fixture 3 is close to the end of buckling of waiting to examine electrode slice 5, and actuating mechanism 4 drive second fixture 3 slides to waiting to examine the end of buckling of examining electrode slice 5.
During working, the electrode slice 5 to be detected cut into a specific size is folded in half and then placed between the third connecting rod 32 and the fourth connecting rod 33, one folded end of the electrode slice 5 to be detected is placed beside the first fixing rod 211 on the first connecting rod 21, the other folded end of the electrode slice 5 to be detected is tightly abutted by the second fixing rod 221 on the second connecting rod 22, and the clamping seat 2212 on the second connecting rod 22 is fixed on the baffle 11 through the third locking bolt 2213; then adjusting the gap distance between the first connecting rod 21 and the second connecting rod 22, and between the third connecting rod 32 and the fourth connecting rod 33 according to the thickness of the electrode sheet 5 to be detected, after the adjustment is completed, screwing the first locking bolt 2111, the second locking bolt 2211 and the fourth locking bolt 332 to fix the electrode sheet 5 to be detected between the first connecting rod 21 and the second connecting rod 22, and between the third connecting rod 32 and the fourth connecting rod 33, fixing two folded ends of the electrode sheet 5 to be detected between the first connecting rod 21 and the second connecting rod 22, and fixing the bent end of the electrode sheet 5 to be detected between the third connecting rod 32 and the fourth connecting rod 33; then, the handle 43 is slowly rotated to rotate the screw rod 42, and according to the mutual matching of the fixed seat (not shown), the fixed plate (not shown) and the screw rod 42, the handle 43 can be rotated to drive the screw rod 42 to drive the moving plate 31 to move rightwards, and the third connecting rod 32 and the fourth connecting rod 33 are fixed on the moving plate 31, so that the third connecting rod 32 and the fourth connecting rod 33 can be controlled to move rightwards to continuously extrude the bending end of the electrode slice 5 to be detected so as to continuously deform the bending end; meanwhile, observing the deformation part of the bending end of the electrode plate 5 to be detected, and recording the moving distance values of the third connecting rod 32 and the fourth connecting rod 33 and the corresponding grade region positions when the bending end of the electrode plate 5 to be detected cracks or breaks through the scale 12 on the base 1; judging the flexibility of the electrode slice 5 to be detected according to the moving distance value of the fourth connecting rod 33 and the position of the grade area corresponding to the third connecting rod 32; the method for judging the flexibility comprises the following steps: the distance between the scales 12 on the base 1 is set as L, and the moving distance between the third connecting rod 32 and the fourth connecting rod 33 is set as S;
when S is more than 9/10L and less than or equal to 1L, the flexibility of the electrode plate 5 to be detected is judged to be a first grade, and the flexibility is the best;
when S is more than 8/10L and less than or equal to 9/10L, the flexibility of the electrode slice 5 to be detected is judged to be a second grade;
when S is more than 7/10L and less than or equal to 8/10L, the flexibility of the electrode slice 5 to be detected is judged to be a third grade;
when S is more than 6/10L and less than or equal to 7/10L, the flexibility of the electrode slice 5 to be detected is judged to be the fourth grade;
when the S is less than or equal to 6/10L, the flexibility of the electrode plate 5 to be detected is judged to be a fifth grade, and the flexibility is the worst;
according to the standard of judging the flexibility grade of the electrode plate 5 to be detected, marking grade marks 13 of a first grade, a second grade, a third grade, a fourth grade and a fifth grade on the base 1 according to the moving distance of the third connecting rod 32 and the fourth connecting rod 33; when the electrode slice 5 to be detected cracks or breaks, the flexibility grade of the electrode slice 5 to be detected is quickly judged according to the positions where the third connecting rod 32 and the fourth connecting rod 33 stay.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The electrode plate flexibility detection device is characterized by comprising a first clamping mechanism (2), a second clamping mechanism (3) and a driving mechanism (4); the first clamping mechanism (2) and the second clamping mechanism (3) clamp the electrode slice (5) to be detected after being folded in half; the first clamping mechanism (2) is used for fixing two folded ends of the electrode slice (5) to be detected; the second clamping mechanism (2) is close to the bending end of the electrode plate (5) to be detected; and the driving mechanism (4) drives the second clamping mechanism (3) to slide towards the bending end of the electrode plate (5) to be detected.
2. The electrode sheet flexibility detection device according to claim 1, characterized in that: the device also comprises a base (1), wherein baffle plates (11) are fixed on the front wall and the rear wall of the base (1); a first clamping mechanism (2) is fixed between the two baffle plates (11) on one side; and two baffles (11) on the other side are connected with a second clamping mechanism (3) in a sliding way.
3. The electrode sheet flexibility detection device according to claim 1 or 2, characterized in that: the first clamping mechanism (2) comprises a first connecting rod (21) and a second connecting rod (22); the front end of the first connecting rod (21) is fixed on the baffle (11), and the rear end of the first connecting rod (21) is fixed with a first fixing rod (211); the front end of the second connecting rod (22) is fixed with a second fixing rod (221), the rear end of the second connecting rod (22) is fixed with a clamping seat (2212), and the clamping seat (2212) is clamped on the baffle (11).
4. The electrode sheet flexibility detection device according to claim 3, characterized in that: a first locking bolt (2111) is connected to the middle of the first fixing rod (211); the middle of the second fixing rod (221) is connected with a second locking bolt (2211).
5. The electrode sheet flexibility detection device according to claim 1 or 2, characterized in that: the second clamping mechanism (3) comprises a moving plate (31); and sliding seats (311) are fixed at the front end and the rear end of the moving plate (31), and the sliding seats (311) are clamped on the front baffle plate and the rear baffle plate (11) and slide in a matched manner with the baffle plates (11).
6. The electrode sheet flexibility detection device according to claim 5, characterized in that: the second clamping mechanism (3) further comprises a third connecting rod (32) and a fourth connecting rod (33); a third connecting rod (32) is fixed at one end, close to the first clamping mechanism (2), of the front sliding seat (311), and a fourth connecting rod (33) is fixed at one end, close to the first clamping mechanism (2), of the rear sliding seat (311); the base (1) is positioned between the moving plate (31) and the third connecting rod (32) and the fourth connecting rod (33); the rear end of the third connecting rod (32) is fixedly provided with a first pressure plate (321), and the front end of the fourth connecting rod (33) is fixedly provided with a second pressure plate (331).
7. The electrode sheet flexibility detection device according to claim 6, characterized in that: the front part of the second pressure plate (331) is connected with a blocking piece (333) through a fourth locking bolt (332).
8. The electrode sheet flexibility detection device according to claim 6, characterized in that: the rear end of the top wall of the base (1) is provided with scales (12), and the front end of the top wall of the base (1) is provided with a grade mark (13); the third connecting rod (32) is arranged in parallel with the grade mark (13), and the fourth connecting rod (33) is arranged in parallel with the scale (12).
9. The electrode sheet flexibility detection device according to claim 1, characterized in that: the driving mechanism (4) comprises a fixed seat, a screw rod (42), a crank handle (43) and a fixed plate; the fixing base is fixed on the bottom wall of the base (1), the fixing plate is fixed on the bottom wall of the moving plate (31), threaded holes aligned in parallel are formed in the center positions of the fixing base and the fixing plate and are parallel to the moving plate (31), and spiral screw rods (42) are connected inside the threaded holes.
10. The electrode sheet flexibility detection device according to claim 9, characterized in that: and a crank handle (43) is fixed at one end of the screw rod (42) far away from the fixed seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122038144.4U CN215677918U (en) | 2021-08-26 | 2021-08-26 | Electrode slice flexibility detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122038144.4U CN215677918U (en) | 2021-08-26 | 2021-08-26 | Electrode slice flexibility detection device |
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| Publication Number | Publication Date |
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| CN215677918U true CN215677918U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122038144.4U Active CN215677918U (en) | 2021-08-26 | 2021-08-26 | Electrode slice flexibility detection device |
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| CN (1) | CN215677918U (en) |
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- 2021-08-26 CN CN202122038144.4U patent/CN215677918U/en active Active
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